<https://hometalk.chiefarchitect.com/topic/1894-spline-terrain-walls-walkways/#comment-10709>
<http://schema.org/text>
"Use the Spline Sidewalk tool.  Click-drag-release the first segment.  Yes it will be straight.  From the end of that first segment, click-drag-release again to add a second segment at an angle to the first one.  When you release, both segments will be automatically shaped into a smooth (more-or-less) curve.  Repeat, etc., to continue your path.  Modify any of the control points afterwards to reshape it. \n  \nHope that helps!   \n"
<https://hometalk.chiefarchitect.com/topic/1894-spline-terrain-walls-walkways/>